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公开(公告)号：US5571387A
公开(公告)日：1996-11-05
申请号：US304919
申请日：1994-09-13
CPC分类号： B01D3/14 , C07C29/76 , C07C29/80 , C07C41/36 , C07C41/42 , C07C2101/14 , Y10S203/06
摘要： The present invention is a process for separating at least a first component from a second component of at least a first stream within a single vessel having at least one distillation zone and an adsorption zone. The invention may be applied to separates an alcohol from a mixture of the alcohol and water, such as separating isopropyl alcohol from a mixture of isopropyl alcohol and water. The invention may be applied to more complex systems such as separating isopropyl alcohol and separating diisopropyl ether from the effluents of each reactor of a two-stage diisopropyl ether production process. The benefit of the invention is a high purity separation process at reduced capital equipment costs.
摘要翻译： 本发明是一种在具有至少一个蒸馏区和吸附区的单个容器内从至少第一流中的第二组分分离至少第一组分的方法。 本发明可以应用于将醇与醇和水的混合物分离，例如从异丙醇和水的混合物中分离异丙醇。 本发明可以应用于更复杂的系统，例如从两步二异丙醚生产过程的每个反应器的流出物中分离异丙醇和分离二异丙醚。 本发明的优点是降低资本设备成本的高纯度分离方法。
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公开(公告)号：US5565066A
公开(公告)日：1996-10-15
申请号：US319919
申请日：1994-10-07
CPC分类号： B01D3/14 , Y10S203/06
摘要： The present invention is a single vessel apparatus for separating at least a first component from a second component of a process stream. The apparatus has a vertically-elongated vessel which contains a plurality of vertically spaced apart distillation contactors for vapor and liquid distillation and an adsorbent-retaining volume defined at least in part by a solids-impermeable member located above the contactors for passing a fluid into the retaining volume. The apparatus also contains a mechanism for adding adsorbent above the solids-impermeable member and a mechanism for withdrawing adsorbent particles from the retaining volume to contact the fluid with adsorbent particles and to provide at least intermittent downward gravity flow of adsorbent particles through the retaining volume and to selectively adsorb a portion of the fluid. The apparatus further contains a regenerator for desorbing fluids from adsorbent particles which is in communication with the mechanism for adding adsorbent above the solids-impermeable member and the means for withdrawing adsorbent particles from the adsorbent-retaining volume. The fluids are desorbed in the regenerator by passing a regenerant into and collecting the regenerant from the regenerator. Finally, the apparatus also contains a mechanism for adding fluid to and withdrawing fluid from the vessel. The benefit of the invention is a high purity single vessel separation unit at reduced capital equipment costs.
摘要翻译： 本发明是用于从至少第一组分与工艺流的第二组分分离的单容器装置。 该装置具有垂直细长的容器，其包含用于蒸气和液体蒸馏的多个垂直间隔开的蒸馏接触器，以及至少部分地由位于接触器上方的固体不可渗透构件限定的吸附剂保留体积，用于将流体传入 保持体积。 该装置还包含用于在固体不可渗透构件上添加吸附剂的机构，以及用于从保留体积中吸出吸附剂颗粒以吸附流体与吸附剂颗粒接触并提供吸附剂颗粒至少间断向下重力流过保持体积的机构， 以选择性地吸附流体的一部分。 该设备还包含用于从吸附剂颗粒解吸流体的再生器，其与用于在固体不可渗透构件上添加吸附剂的机构连接，以及用于从吸附剂保持体积中抽出吸附剂颗粒的装置。 通过使再生剂进入再生器并从再生器收集再生剂，在再生器中解吸流体。 最后，该装置还包含用于向容器中加入流体和从容器中取出流体的机构。 本发明的优点是在降低资本设备成本的情况下是高纯度单容器分离单元。
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公开(公告)号：US5530172A
公开(公告)日：1996-06-25
申请号：US333682
申请日：1994-11-03
CPC分类号： C07C9/18 , C07C5/2789 , C07C5/2791 , C07C7/13 , C07C9/12 , C07C9/16 , C07C2521/04 , C07C2521/06 , C07C2523/42 , C07C2523/54 , C07C2527/126 , C07C2529/22 , Y02P20/582
摘要： A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may be n-butane and the isomerized product 2-methylpropane, the alkane may be n-pentane and the isomerized product 2-methylbutane or 2,2-dimethylpropane, the alkane may have from 6 up to about 8 carbon atoms with no more than one methyl branch and the isomerized product having the same number of carbon atoms and at least two methyl branches, or the reactant may be a mixture of the foregoing alkanes with the corresponding isomerized products being formed. In a zone of the simulated moving bed, the alkanes are catalytically isomerized to form the isomerized products. The unreacted alkanes are adsorbed, and the isomerized products are collected. In a subsequent zone of the simulated moving bed, the unreacted alkanes are desorbed using a desorbent and are catalytically isomerized to form additional isomerized products which are also separated and collected.
摘要翻译： 已经开发了通过使烷烃与用作异构化的催化剂的模拟移动床和用于烷烃的吸附剂使烷烃连续异构化以产生异构化产物的方法。 烷烃可以是正丁烷，异构化产物2-甲基丙烷，烷烃可以是正戊烷，异构化产物2-甲基丁烷或2,2-二甲基丙烷，烷烃可以具有6个至约8个碳原子，没有 多于一个甲基支链和具有相同数目的碳原子和至少两个甲基支链的异构化产物，或者反应物可以是前述烷烃与形成相应的异构化产物的混合物。 在模拟移动床的区域中，烷烃被催化异构化以形成异构化产物。 未反应的烷烃被吸附，收集异构化产物。 在模拟移动床的随后区域中，未反应的烷烃使用解吸剂解吸，并且被催化异构化以形成也被分离和收集的另外的异构化产物。
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4.发明授权Process for concurrent hydrolysis of esters and separation of products using a simulated moving bed 失效使用模拟移动床同时水解酯类和分离产物的方法
公开(公告)号：US5502248A
公开(公告)日：1996-03-26
申请号：US395240
申请日：1995-02-27
CPC分类号： C07C29/095 , C07C51/09 , Y02P20/582
摘要： A process for the continuous hydrolysis of esters containing from 2 to about 16 carbon atoms to form at least one alcohol and at least one carboxylic acid and the concurrent separation of the hydrolysis products has been developed. The process uses a solid bed which acts as a catalyst for hydrolysis and as an adsorbent for at least one class of the products. The process operates in the simulated moving bed mode. A specific embodiment of the invention is one where the simulated moving bed is a homogeneous mixture of at least one solid effective as a hydrolysis catalyst and at least one solid effective as an alcohol or carboxylic acid adsorbent. Another specific embodiment is one where the simulated moving bed is a strongly acidic macroreticular polymeric resin effective both as a hydrolysis catalyst and as an adsorbent for at least one hydrolysis product.
摘要翻译： 已经开发了用于连续水解包含2至约16个碳原子的酯以形成至少一种醇和至少一种羧酸并且同时分离水解产物的方法。 该方法使用固体床，其作为水解催化剂和作为至少一类产物的吸附剂。 该过程在模拟移动床模式下运行。 本发明的具体实施方案是其中模拟移动床是至少一种作为水解催化剂有效的固体和至少一种作为醇或羧酸吸附剂有效的固体的均匀混合物。 另一个具体实施方案是其中模拟的移动床是强酸性大网络聚合物树脂，其有效地作为水解催化剂和用作至少一种水解产物的吸附剂。
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5.发明授权
公开(公告)号：US5744683A
公开(公告)日：1998-04-28
申请号：US666713
申请日：1996-06-18
申请人： Hemant W. Dandekar , Gregory A. Funk , Simon H. Hobbs , Masami Kojima , Ralph D. Gillespie , Herman A. Zinnen , Charles P. McGonegal
发明人： Hemant W. Dandekar , Gregory A. Funk , Simon H. Hobbs , Masami Kojima , Ralph D. Gillespie , Herman A. Zinnen , Charles P. McGonegal
CPC分类号： C07C9/16 , C07C5/2791 , C07C2521/04 , C07C2523/42 , C07C2527/126 , C07C2529/44 , Y02P20/582
摘要： A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may be n-butane and the isomerized product 2-methylpropane, the alkane may be n-pentane and the isomerized product 2-methylbutane or 2,2-dimethylpropane, the alkane may have from 6 up to about 8 carbon atoms with no more than one methyl branch and the isomerized product having the same number of carbon atoms and at least two methyl branches, or the reactant may be a mixture of the foregoing alkanes with the corresponding isomerized products being formed. In a zone of the simulated moving bed, the alkanes are catalytically isomerized to form the isomerized products. The unreacted alkanes are adsorbed, and the isomerized products are collected. In a first subsequent zone of the simulated moving bed, a large portion of the unreacted alkanes are desorbed using a desorbent. In a second subsequent zone of the simulated moving bed, residual adsorbed alkanes are desorbed using a mixture of desorbent and isomerized products, and the desorbed residual alkanes may be removed from the simulated moving bed or may be reacted to form additional isomerized products. The isomerized products are removed from the simulated moving bed and collected. The process may also be used to effect other chemical reactions with the concurrent separation of product.
摘要翻译： 已经开发了通过使烷烃与用作异构化的催化剂的模拟移动床和用于烷烃的吸附剂使烷烃连续异构化以产生异构化产物的方法。 烷烃可以是正丁烷，异构化产物2-甲基丙烷，烷烃可以是正戊烷，异构化产物2-甲基丁烷或2,2-二甲基丙烷，烷烃可以具有6个至约8个碳原子，没有 多于一个甲基支链和具有相同数目的碳原子和至少两个甲基支链的异构化产物，或者反应物可以是前述烷烃与形成相应的异构化产物的混合物。 在模拟移动床的区域中，烷烃被催化异构化以形成异构化产物。 未反应的烷烃被吸附，收集异构化产物。 在模拟移动床的第一后续区域中，大部分未反应的烷烃使用解吸剂解吸附。 在模拟移动床的第二个随后的区域中，残余吸附的烷烃使用解吸剂和异构化产物的混合物解吸，并且解吸的残余烷烃可以从模拟的移动床中除去，或者可以反应形成另外的异构化产物。 将异构化产物从模拟移动床上取出并收集。 该方法也可用于通过产品的同时分离来实现其它化学反应。
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公开(公告)号：US5004853A
公开(公告)日：1991-04-02
申请号：US328654
申请日：1989-03-27
IPC分类号： C07C7/13
CPC分类号： C07C7/13
摘要： A continuous process is presented for the production and recovery of a high purity stream of 2,6-dimethylnaphthalene. The process comprises the general steps of: fractionating a hydrocarbon feed stream to recover a process stream rich in the various isomers of dimethylnaphthalene; subjecting the process stream rich in isomers of dimethylnaphthalene to a selective adsorption step to produce at least two streams of dimethylnaphthalene isomers, one lean in the 2,6-dimethylnaphthalene isomer and subjecting the stream of dimethylnaphthalene isomers lean in the 2,6 isomer to isomerization to increase the concentration of the 2,6 isomer of dimethylnaphthalene therein and directing the isomerized stream back to the fractionation zone to further processing.
摘要翻译： 介绍了生产和回收2,6-二甲基萘高纯度流的连续方法。 该方法包括以下步骤：分馏烃进料流以回收富含二甲基萘各种异构体的工艺流程; 使富含二甲基萘的异构体的工艺流进行选择性吸附步骤，以产生至少两股二甲基萘异构体流，一个在2,6-二甲基萘异构体中的一个，并使二价萘异构体流在2,6异构体中异构化 以增加其中二甲基萘的2,6异构体的浓度，并将异构化流引导回分馏区进行进一步处理。
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公开(公告)号：US4428827A
公开(公告)日：1984-01-31
申请号：US460433
申请日：1983-01-24
摘要： An FCC sulfur oxide acceptor, its method of manufacture and use in the FCC process. The acceptor, a particulate solid containing magnesium, sodium and aluminum, the precursor of which comprises a mixture of precipitates. One precipitate is a compound of aluminum and another is a compound of magnesium. The precipitates are simultaneously precipitated from a common solution in which they have a highly limited solubility.
摘要翻译： FCC硫氧化物受体，其在FCC工艺中的制造和使用方法。 受体是含有镁，钠和铝的颗粒状固体，其前体包含沉淀物的混合物。 一个沉淀物是铝的化合物，另一个是镁的化合物。 沉淀物从它们具有高度有限溶解度的共同溶液中同时沉淀。
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公开(公告)号：US5523503A
公开(公告)日：1996-06-04
申请号：US274512
申请日：1994-07-13
CPC分类号： B01J8/0457 , B01J8/04 , C07C2/58 , B01J2208/00106 , Y02P20/584
摘要： Hydrocarbons such as isobutane and benzenes are alkylated using a solid catalyst in a process which simulates the cocurrent movement of the catalyst bed versus the reactants. This has been found to greatly reduce the rate of catalyst deactivation compared to simulated countercurrent flow. The process may be performed using five or more beds of catalyst, with two undergoing regeneration at any one time. One bed is subjected to a short term liquid-phase regeneration while the other is subjected to long term vapor-phase regeneration. The catalyst preferably contains a metal hydrogenation function effective to selectively hydrogenate C.sub.6 -plus materials trapped on the used catalyst.
摘要翻译： 在模拟催化剂床与反应物的并流运动的过程中，使用固体催化剂将烃类如异丁烷和苯烷基化。 已经发现，与模拟逆流相比，催化剂失活的速率大大降低。 该方法可以使用五个或更多个催化剂床进行，其中两个在任何一个时间进行再生。 一台床进行短期液相再生，另一台进行长期气相再生。 催化剂优选含有有效地选择性氢化被捕获在所用催化剂上的C6加材料的金属加氢功能。
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公开(公告)号：US4497972A
公开(公告)日：1985-02-05
申请号：US540931
申请日：1983-10-11
申请人： Richard W. Neuzil , Simon H. Hobbs
发明人： Richard W. Neuzil , Simon H. Hobbs
CPC分类号： C07C7/13
摘要： A process for separating ethylbenzene from a feed mixture comprising ethylbenzene and at least one xylene isomer. The mixture is contacted with an adsorbent comprising a barium cation exchanged type-X zeolite containing from about 3.0 to about 6.0 wt. % H.sub.2 O. The unadsorbed portion of the feed mixture is removed from the adsorbent and the ethylbenzene recovered by desorption with benzene.
摘要翻译： 从包含乙苯和至少一种二甲苯异构体的进料混合物中分离乙苯的方法。 将混合物与包含钡离子交换型-X沸石的吸附剂接触，所述钡沸石含有约3.0至约6.0重量％ ％H2O。 进料混合物的未吸附部分从吸附剂中除去，乙苯通过用苯解吸而回收。
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公开(公告)号：US4459371A
公开(公告)日：1984-07-10
申请号：US548524
申请日：1983-11-03
CPC分类号： C10G11/05 , B01J20/041 , B01J20/08 , B01J20/28004 , B01J20/3078 , C10G11/04 , Y10S502/517
摘要： An FCC sulfur oxide acceptor, its method of manufacture and use in the FCC process. The acceptor, a particulate solid containing magnesium, sodium and aluminum, the precursor of which comprises a mixture of precipitates. One precipitate is a compound of aluminum and another is a compound of magnesium. The precipitates are simultaneously precipitated from a common solution in which they have a highly limited solubility.
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